Processes

Torrefaction

The Torrefaction process can be applied for a wide range of organic materials such as wood chips and straw. It is a thermochemical process where various biomasses are treated in the absence of oxygen at temperatures between 250 … 320 ºC.
The torrefied biomass has a greater stability in prolonged storage as it is more resistant to biological degradation. It has a high energy density reducing significantly storage and transport costs.

For this application the LIST KneaderReactor is equipped with an optimized mixing shaft geometry which promotes the heat transfer to the dry product.

LIST Technology and Centro Nacional de Energías Renovables, Aoiz, Spain (CENER, https://www.cener.com) have a cooperation to promote the LIST Torrefaction technology

Properties

  • Effective self-cleaning to minimize dead zones, product accumulation and product degradation

  • Excellent kneading and mixing for better homogenization

  • Low shear processing

  • Specific agitator design for transport of various biomass

  • Effective heat transfer

  • High surface renewal efficiency

  • Large free vapour volume

  • Precise and uniform temperature control due to large heat transfer areas

  • Continuous processing

  • Wide and flexible range of average residence times

  • Wide and flexible range of average residence times

  • Reliable process scale-up from pilot to industrial units

Examples

Various types of wood chips, e.g. pine, poplar, beech, eucalyptus, pawlonia, olive tree pruning, and chopped straw

Do you have any questions?

Downloads

No downloads found!

    More about us

    LIST KneaderReactor

    Where viscosity cannot be a limitation. LIST kneader reactors operate in the concentrated phase—self-cleaning, vacuum-compatible, and capable of handling the highest energy inputs. From lab-scale kneaders to large-scale industrial plants, for the chemical, fiber, polymer, and recycling industries.

    Service

    LIST services ensure maximum plant availability through maintenance, modernization, and technical support throughout the entire lifecycle.

    About Us

    The BUSSLIST Group combines three process technologies that cover the most demanding stages of material processing—from high-viscosity reactions and temperature-sensitive compounding to precise solidification.